Preparation of MQ resin
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MQ silicone resin is usually prepared by sol-gel method. The main raw material of M chain is hexamethyldisiloxane (MM) or trimethyl monochlorosilane. The raw material of Q chain is mainly water glass (silicic acid). Sodium) or TEOS. Due to the different raw materials of the Q chain link, it is mainly divided into the orthosilicate method and the water glass method. The product made from ethyl orthosilicate has better performance, but the cost is higher, which limits its application. The raw material of water glass method is cheap and easy to obtain.
